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Estimations of maximum sustainable fish yields and stocking densities of inland reservoirs of Sri Lanka

Estimations of maximum sustainable fish yields and stocking densities of inland reservoirs of Sri Lanka

Authors :
Wijeyaratne, M.R.S.
Amarasinghe, U.S.
Source :
National Aquatic Resources Research and Development Agency, Sri Lanka
Publication Year :
1984

Abstract

The Maximum Sustainable Yields of all fish species for 9 man-made reservoirs in Sri Lanka were calculated by the simplified version of Schaefer Model. The relationship between the Maximum Sustainable Yield (MSY) and Morpho-edaphic Index, (MEI) for Sri Lankan reservoirs was found to be: Log sub(e) MSY = 0.9005 log sub(e) MEI + 1.9220. MSY for these reservoirs were estimated using this relationship. The number of Tilapia) juveniles needed to be recruited to the fisheries of some reservoirs in addition to the present recruitment to increase the fish production to the level estimated by MEI relationship were calculated mathematically. National Aquatic Resources Agency now incorporated in: National Aquatic Resources Research and Development Agency, Sri Lanka

Details

Language :
English
Database :
OpenAIRE
Journal :
National Aquatic Resources Research and Development Agency, Sri Lanka
Accession number :
edsair.dedup.wf.001..ceae2413fc8c38a9779af0e43407605b